Isogeochemical characterization of mountain system recharge processes in the Sierra Nevada, California

Mountain System Recharge processes are significant natural recharge pathways in many arid and semi-arid mountainous regions. However, Mountain System Recharge processes are often poorly understood and characterized in hydrologic models. Mountains are the primary water supply source to valley aquifers via lateral groundwater flow from the mountain block (Mountain Block Recharge) and focused recharge from mountain streams contributing to focused Mountain Front Recharge at the piedmont zone. Here, we present a multi-tool isogeochemical approach to characterize mountain flow paths and Mountain System Recharge in the northern Tulare Basin, California. We used groundwater chemistry data to delineate hydrochemical facies and explain the chemical evolution of groundwater from the Sierra Nevada to the Central Valley aquifer. Stable isotopes and radiogenic groundwater tracers validated Mountain System Recharge processes by differentiating focused from diffuse recharge, and estimating apparent gro..., We used hydrochemical and isotope data from the US Geological Survey Groundwater Ambient Monitoring and Assessment (GAMA) program (Bennett et al., 2017) and processed these data for End-Member Mixing Analysis (EMMA) and mixing ratio calculations using MIX program., , This README.txt file was generated on 2024-06-03 by Hoori Ajami

GENERAL INFORMATION

1. **Title of Dataset:** Isogeochemical Characterization of Mountain System Recharge Processes in the Sierra Nevada, California
2. **Author Information**

A. Researcher Contact Information
Name: Sandra Armengol Vall
Institution: Universidy of California at Riverside
Address: Department of Environmental Sciences, University of California, Riverside, CA 92521, USA
Email: [[e-mail]](mailto:[e-mail])

B. Principal Investigator Contact Information
Name: Hoori Ajami
Institution: Universidy of California at Riverside
Address: Department of Environmental Sciences, University of California, Riverside, CA 92521, USA
Email: [[e-mail]](mailto:[e-mail])
3. **Date of data collection**: 2020-05-01 - 2023-06-01
4. **Geographic location of data collection**: Northern Tulare Basin, California, USA
5. **Information about funding sources...